【資料成文時間】：2008.01.07
【語言】：中文
【頁數】：118
【何人（公司）所著】：中興公司
【文件格式】：PDF
【文件原名】：001-ZXC10 CBTS I2 CDMA2000緊湊型基站2型技術手冊.pdf
【摘要或目錄】：

第1章 基礎知識......................................................................................................................................1-1
1.1 移動通信系統(tǒng)...............................................................................................................................1-1
1.2 移動通信歷史...............................................................................................................................1-2
1.3 CDMA2000 1X標準演進................................................................................................................1-3
1.4 CDMA基本原理..............................................................................................................................1-4
1.4.1 擴頻原理...............................................................................................................................1-4
1.4.2 頻率復用...............................................................................................................................1-7
1.4.3 功率控制...............................................................................................................................1-8
1.4.4 RAKE接收...........................................................................................................................1-10
1.4.5 軟切換...............................................................................................................................1-11
1.4.6 虛擬軟切換.........................................................................................................................1-12
1.4.7 話音編碼.............................................................................................................................1-13
1.5 CDMA信道..................................................................................................................................1-13
1.5.1 CDMA2000 1X信道............................................................................................................1-13
1.5.2 1X EV-DO Release 0信道...................................................................................................1-15
1.5.3 1X EV-DO Release A信道...................................................................................................1-20
1.5.4 Release A對QoS的增強.......................................................................................................1-22
1.6 雙模處理.....................................................................................................................................1-22
1.6.1 1X EV-DO Release 0雙模...................................................................................................1-23
1.6.2 1X EV-DO Release A雙模...................................................................................................1-24
1.7 全IP..............................................................................................................................................1-26
第2章 系統(tǒng)描述......................................................................................................................................2-1
2.1 CBTS I2位置.................................................................................................................................2-1
2.2 CBTS I2組成.................................................................................................................................2-2
2.3 CBTS I2特征.................................................................................................................................2-3
2.3.1 支持多頻段...........................................................................................................................2-4
2.3.2 支持大容量...........................................................................................................................2-4
2.3.3 技術先進...............................................................................................................................2-5
2.3.4 高可靠性...............................................................................................................................2-5

2.3.5 擴容方便...............................................................................................................................2-5
2.3.6 組網靈活...............................................................................................................................2-6
2.3.7 維護方便...............................................................................................................................2-6
2.4 CBTS I2（CBM）特征...................................................................................................................2-6
2.4.1 CBM主要功能.......................................................................................................................2-6
2.4.2 CBM基站配置.......................................................................................................................2-7
第3章 硬件結構.....................................................................................................................................3-1
3.1 概述...............................................................................................................................................3-1
3.1.1 物理結構...............................................................................................................................3-2
3.1.2 邏輯結構...............................................................................................................................3-3
3.1.3 所有模塊列表.......................................................................................................................3-4
3.2 BDS................................................................................................................................................3-5
3.3 CBTS I2（CBM）的配置...............................................................................................................3-5
3.3.1 CBM原理...............................................................................................................................3-7
3.3.2 GPS單元...............................................................................................................................3-7
3.3.3 ABIS接口單元.......................................................................................................................3-8
3.3.4 基帶處理單元.......................................................................................................................3-8
3.3.5 光接口單元...........................................................................................................................3-8
3.3.6 射頻控制單元.......................................................................................................................3-9
3.4 CBTS I2的配置...............................................................................................................................3-9
3.4.1 原理...................................................................................................................................3-12
3.4.2 特點...................................................................................................................................3-13
3.5 RFS...............................................................................................................................................3-13
3.5.1 結構...................................................................................................................................3-14
3.5.2 原理...................................................................................................................................3-16
3.5.3 特點...................................................................................................................................3-17
3.6 PWS..............................................................................................................................................3-17
第4章 軟件結構.....................................................................................................................................4-1
4.1 BTS軟件概述................................................................................................................................4-1
4.2 CCM軟件.......................................................................................................................................4-3
4.3 CHM0軟件....................................................................................................................................4-3
4.4 CHM1軟件....................................................................................................................................4-4

4.5 CHM2軟件....................................................................................................................................4-4
4.6 CHM3軟件....................................................................................................................................4-4
4.7 RMM軟件......................................................................................................................................4-4
4.8 CBM軟件.......................................................................................................................................4-4
4.9 TRX軟件........................................................................................................................................4-5
第5章 組網和配置..................................................................................................................................5-1
5.1 CBTS I2（CBM）組網...................................................................................................................5-1
5.2 CBTS I2組網.................................................................................................................................5-2
5.2.1 LS模式..................................................................................................................................5-5
5.2.2 RS模式.................................................................................................................................5-6
5.2.3 LEA模式...............................................................................................................................5-7
5.2.4 LEB模式...............................................................................................................................5-10
5.2.5 RE模式...............................................................................................................................5-11
5.2.6 ME模式...............................................................................................................................5-12
5.3 配置步驟.....................................................................................................................................5-13
第6章 技術指標......................................................................................................................................6-1
6.1 環(huán)境指標.......................................................................................................................................6-1
6.1.1 非電氣指標...........................................................................................................................6-1
6.1.2 電源指標...............................................................................................................................6-2
6.1.3 功耗.....................................................................................................................................6-2
6.2 性能指標.......................................................................................................................................6-3
6.2.1 可靠性指標...........................................................................................................................6-3
6.2.2 CBTS I2（CBM）接口指標.................................................................................................6-3
6.2.3 CBTS I2接口指標.................................................................................................................6-3
6.2.4 CBTS I2（CBM）容量指標.................................................................................................6-4
6.2.5 CBTS I2容量指標.................................................................................................................6-4
6.2.6 射頻指標...............................................................................................................................6-5
6.2.7 800 MHz、450 MHz、850 MHz、ATG射頻指標...............................................................6-5
6.2.8 1.9 GHz、AWS頻段射頻指標..............................................................................................6-7
6.2.9 接收信號質量指示...............................................................................................................6-8
6.2.10 時鐘指標.............................................................................................................................6-8
6.2.11 噪聲指標.............................................................................................................................6-9

第7章 可靠性設計.................................................................................................................................7-1
7.1 硬件可靠性...................................................................................................................................7-1
7.1.1 簡化設計...............................................................................................................................7-1
7.1.2 元器件設計...........................................................................................................................7-1
7.1.3 冗余設計...............................................................................................................................7-1
7.1.4 熱設計.................................................................................................................................7-1
7.1.5 防護設計...............................................................................................................................7-2
7.1.6 防傳導干擾設計...................................................................................................................7-2
7.1.7 安全性設計...........................................................................................................................7-2
7.1.8 可測試性設計.......................................................................................................................7-2
7.1.9 防錯設計...............................................................................................................................7-2
7.2 軟件可靠性...................................................................................................................................7-2
7.2.1 需求分析階段.......................................................................................................................7-2
7.2.2 設計階段...............................................................................................................................7-3
7.2.3 測試階段...............................................................................................................................7-3
7.2.4 維護階段...............................................................................................................................7-4